/* Timer 组件样式 */
.timer {
  width: 220px;
  margin: 0 auto;
  background: #f6ffed;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  padding: 20px 16px 16px 16px;
  text-align: center;
}
.timer-display {
  font-size: 2rem;
  color: #52c41a;
  margin-bottom: 18px;
  font-weight: bold;
}
.timer-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
}
.timer-buttons button {
  padding: 8px 18px;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  background: #d9f7be;
  color: #222;
  cursor: pointer;
  transition: background 0.2s;
}
.timer-buttons button:disabled {
  background: #f0f0f0;
  color: #aaa;
  cursor: not-allowed;
}
.timer-buttons button:hover:not(:disabled) {
  background: #b7eb8f;
}
